anus
The external orifice of the rectum in most mammals, teleost fish, and many invertebrates, through which feces and flatus are ejected.
Other meanings
The anus and rectum, considered as a whole.
An impolite, unpopular, or unintelligent person.
Word history
From Latin "ānus" (ring, anus).
Where this comes from
This definition is adapted from “anus” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.